MYCOTEETUS. 65 



49. Mycotretus dytiscoides. 



Mycotretus dytiscoides, Lac. Monogr. Erotyl. p. 184 \ 



Hdb. Mexico 1 , Toxpam, San Andres Tuxtla (Salle). 



There are four examples of a very small Mycotretus in Salle's collection which I think 

 should bear the above name ; three of these have the breast and legs infuscate, thus 

 agreeing better with the description of M. misellus. The locality of Lacordaire's type 

 of that species is unknown; Crotch's specimen (from Eeiche) and his remark, "under- 

 side smooth," do not agree with Lacordaire's description. 



The present species agrees very well with the description of M. dytiscoides, excepting 

 in the colour of the legs and breast ; this appears to be possibly due to variation only, 

 as we have one specimen from the same locality with these parts quite yellow. It being 

 impossible now with certainty to identify M. misellus, I propose to ignore that species 

 altogether. We have before us a specimen of M. dytiscoides received from Chevrolat 

 by Crotch, and with it our species very nearly agrees. It is quite possible, however, 

 that it is after all only a pallid form of M. miniatus, 



It is also a question whether these species should not be placed in Paratritoma, a 

 genus I propose for some small species which are also much punctured on the sterna, 

 and in which the mentum, or rather its basal portion, is so much reduced as to be of 

 no value for classification. This point can hardly be decided till the very numerous allied 

 forms have been more studied. 



50. Mycotretus miniatus. 



Mycotretus miniatus, Lac. Monogr. Erotyl. p. 183 \ 

 Hdb. Mexico \ Toxpam (Salle). 



The metasternum, with its episterna, the legs, and generally the scutellum are black ; 

 the underside, with the exception of the abdomen, is coarsely and deeply punctate. 

 Pronotum distinctly punctured, narrowed from the base to the front angles, which are 

 a little acute. 



Five examples in Salle's collection. 



Var. ? Metasterno rufo, minus fortiter punctulato, episternis nigris. 



Eab. Guatemala, San Geronimo (Champion). 



One specimen, in other respects agreeing with M. miniatus. 



51. Mycotretus noterinus. 



Oblongus, modice ovatus, castaneus vel flavus ; capite prothoraceque subtilissime minute punctatis, nitidis - f 

 elytris subtiliter punctato-striatis, punctis sat numerosis, interstitiis lsevibus ; antennis, capite cum pro- 

 thorace longitudine aequantibus, artieulis sex ultimis nigris, articulo tertio duobus sequentibus vix aequali ; 

 palporum maxillarium articulo apicali perlato ; corpore subtus haud punctulato. Long. 5 millim. 



Hdb. Panama, Volcan de Chiriqui (Champion). 

 biol. CENTE.-AMEE., Coleopt., Vol. VII., April 1888. E* 



